.论文1)先后次序关系：at this time; first; second; at last; next；previously; simultaneously同时地; eventually；last but not least；to begin with；to start with；to end with；finally；seeing.由于，因为；since then；first of all；afterwards后来; following this; preceding先前的 ;originally最初的ultimate最终的，极限的，根本的2) 因果关系：because；because of this；being that（口语）既然，因为；another important factorreason of. ； since； as； for； in that.； owing to由于，通常负面； due to由于； for the reason that.； in view of鉴于，考虑到 result from归因于the
